//
//  NSString+Extension.h
//  meapp
//
//  Created by linjie on 16/2/18.
//  Copyright © 2016年 nd. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSString (Extension)
//判断字符串是空字符串(nil及空字符串)
-(BOOL) isEmptyString;
@end
